Translation:Maybe we have to go by car.
Yes, I know. But the "old" feedback button, which now is called "support" has been changed to "technical support" in some languages (for example in Spanish) , suggesting to me that "language problems" should be included in the "report a problem" section. I do this regularly, but Duolingo´s response is, shall we say, rather limited. So I thought why not give other users a chance to see it in the language stream .
English uses certain prepositions with the verb "go", whereas German uses different ones; Examples if you use some means of transport it is BY; therefoe you go BY car (mit dem Auto fahren), you go BY train (mit dem Zug fahren), but, now here comes the exception: you go ON foot (zu Fuß gehen) To avoid frustration you have to learn them by heart, sorry :-(